2012 TOYOTA PRIUS V coolant

488 5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the cooling system for
leaks.
If necessary, add engine coolant
up to the “FULL” line.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (P. 501)
Have the vehicle checked at nearest Toyota dealer as soon as possi-
ble.
■If the hybrid system overheat warning light comes on
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.
Check if the cooling fans are operating.
If the fans are operating: Wait until the hybrid system overheat warning light turns off
and then stop the hybrid system.
If the warning light does not turn off, call your Toyota dealer.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3

5
When trouble arises
489
5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
If necessary, add power control
unit coolant up to the “F” line.
Water can be used in an emer-
gency measure if power control
unit coolant is unavailable.
(
P. 501)
Have the vehicle checked at nearest Toyota dealer as soon as possi-
ble.
STEP 4
STEP 5
■ Overheating
The following symptoms may occur when your vehicle is overheating:
● Hybrid system output decrease
● Steam is coming from under the hood

490 5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● Check that the indicator on the “POWER” switch and the “READY” indica-
tor are off.
● For vehicles with a hybrid system, there are times when the gasoline
engine automatically starts to run or the cooling fans suddenly start to
operate. Do not touch or approach the rotating parts of the fans, etc. Doing
so may lead to fingers, clothes or tools getting caught, resulting in injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.)
● Do not use commercially available coolant additives

501
6-1. Specifications
6
Vehicle specifications
PRIUS v_U (OM47784U)
How to read oil container label:
The ILSAC (International Lubric
ant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.
Cooling system
Capacity
Gasoline
engine7.3 qt. (6.9 L, 6.1 Imp.qt.)
Power
control
unit 2.9 qt. (2.7 L, 2.4 Imp.qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technol-
ogy
Do not use plain water alone.

517
6-1. Specifications
6
Vehicle specifications
PRIUS v_U (OM47784U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended infla-
tion pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

555
Alphabetical index
PRIUS v_U (OM47784U)
Engine
Accessory mode ................... 177
Compartment........................ 372
Hood ..................................... 366
How to start the hybrid system................................ 175
Identification number ............ 497
If the hybrid system will not start .................................... 476
Ignition switch ....................... 175
Overheating .......................... 487
“POWER” switch .................. 175
Engine coolant Capacity ............................... 501
Checking .............................. 377
Preparing and checking before winter ...................... 273
Engine/power control unit coolant
Capacity ............................... 501
Checking .............................. 377
Preparing and checking before winter ...................... 273
Engine oil Capacity ............................... 499
Checking .............................. 373
Preparing and checking before winter ...................... 273
Enhanced VSC......................... 252
EPS ........................................... 252
EV drive mode switch ............. 182
Event data recorder .................. 23 Floor mats.................................326
Fluid
Brake .....................................503
Washer ..................................382
Fog lights Replacing light bulbs .............421
Switch....................................221
Wattage .................................506
Foot lights.................................301
Front fog lights
Replacing light bulbs .............421
Switch....................................221
Wattage .................................506
Front passenger occupant classification system ............138
Front passenger’s seat belt reminder light.........................451
Front seats
Adjustment ..............................84
Flattening seatbacks ...............85
Front side marker light Replacing light bulbs .............421
Wattage .................................506
Front turn signal lights Replacing light bulbs .............421
Switch....................................194
Wattage .................................506
Fuel
Capacity ................................498
Fuel gauge ............................197
Information ............................507
Refueling ...............................115
Type ......................................507
Fuel door...................................115
Fuel filler door ..........................115
Fuses.........................................410F

561
Alphabetical index
PRIUS v_U (OM47784U)
Warning buzzers
Brake system........................ 444
Open door ........................... 450
Seat belt reminder ................ 451
Warning lights Anti-lock brake system
(ABS) ................................. 446
Automatic headlight leveling system................................ 448
Brake system................ 444, 447
Charging system .... .............. 445
Cruise control ....................... 448
Electric power steering
system................................ 446
High coolant temperature ..... 445
Hybrid system....................... 445
Hybrid system overheat........ 449
LED headlights ..................... 448
Low engine oil pressure ....... 445
Low fuel level........................ 451
Low hybrid battery (traction battery) ................. 449
Low tire pressure .................. 451
Malfunction indicator lamp.... 446
Open door ............................ 450
Parking lock system ............. 447
P position request... .............. 449
Pre-collision system ............. 447
Radar cruise control. ............ 448
Seat belt warning light .......... 451
Slip indicator ......................... 447
Smart key system ... .............. 459
SRS airbags ......................... 446
Tire pressure warning light ... 451 Warning message
Parking lock system ..............448
Washer
Checking ...............................382
Preparing and checking before winter .......................273
Switch....................................223
Washing and waxing ...............348
Weight Cargo capacity ......................272
Load limits .............................272
Weight ...................................496
Wheels ......................................402
Window glasses .......................112
Window lock switch .................112
Windows Power windows .....................112
Rear window defogger ..........295
Washer ..................................223
Windshield wipers ...................223
Winter driving tips ...................273
Wireless remote control key Locking/Unlocking ...................72
Replacing the battery ............408
WMA disc
*
W
*: Refer to “Display Audio System Owner’s Manual” or “Navigation System Owner’s Manual”.

562
PRIUS v_U (OM47784U)
What to do if...
What to do if...
A tire puncturesP. 462If you have a flat tire
The hybrid system does not start
P. 476If the hybrid system will not start
P. 1 1 9Immobilizer system
P. 481If the 12-volt battery is
discharged
The high coolant temperature
warning light flashes or comes on
If the hybrid system overheat
warning light comes on
Steam can be seen coming
from under the hood
P. 487If your vehicle overheats
The key is lostP. 478If you lose your keys
The 12-volt battery runs outP. 481If the 12-volt battery is
discharged
The doors cannot be lockedP. 7 4Side doors
P. 7 9Back door
The vehicle is stuck in mud or
sandP. 491If the vehicle becomes stuck
A warning light or indicator
light comes onP. 444If a warning light turns on or a
warning buzzer sounds